Ester Brym (pronounced bree-m) (born 4 September 1978 in Prague, Czech Republic)  is a film director, producer and editor.

In 1997 she moved to New York City to pursue studies in film-making. She worked as an editor in independent cinema until 2008 when she decided to move to Los Angeles to direct her first feature film “Butterflies”.

Butterflies, a documentary about YouTubers, is the first film that puts YouTube on a big screen and introduces the world of new and social media. "Butterflies is the first film, that profiles the life of Internet celebrity as a new phenomenon," says journalist Veronika Bednářová in her article in Reflex

Butterflies has premiered at Action on Film International Film Festival in Pasadena, California on 27 July 2009 and have won the Alan J. Bailey Excellence Award in Documentary Filmmaking. It was nominated for Best Social Commentary at AOF. The film also received Best Documentary award at the Valley Film Festival and Best Entertainment Doc and First Glance film festival in Philadephia.

She has been heavily involved with the social networking movement profiling and studying the lives of online personalities.  Together with producer Tom Duty they currently work on their second feature film about the community of Route 66 as well as showing Brym's short film 12 Hours at festivals this summer.

Ester Brym lives in Los Angeles and works as a freelance editor and new media consultant. She also participates in variety of new media & digital campaigns for example Ridley Scott's digital feature experiment Life in a Day, Stream.cz Million for Million where her video was the first one in the country to reach 1,000,000 views, Other projects Brym is involved in are A1 Steak Sauce promo song, Tribeca Pitch Competition and Chinaski band documentary to name a few.

“In the beginning I contacted a few YouTubers I was interested in,” she says. “I did sit-down interviews; the people I interviewed were not necessarily big YouTubers but it got the word out. It built the publicity around it. Then, every time an event would happen, I was able to get a press pass and go shoot. The way the trailer was constructed was to cater to the YouTube community – I’m showing bigger YouTubers in the trailer even though the film is more in-depth than that. But obviously the trailer is trying to get as much attention as possible.